After delete still **** mpg - Ford Powerstroke Diesel Forum
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post #1 of 43 Old 04-30-2012, 03:30 PM Thread Starter
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After delete still **** mpg

I have a 08 250 ccsb with hot damn tunes and still getting almost stock mpg. Anyone know why or could help me out. I don't know if this makes any difference but the #8 injector sticks when it's cold. Any help would be great thanks
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post #2 of 43 Old 04-30-2012, 03:32 PM
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Originally Posted by Biggreystroker View Post
I have a 08 250 ccsb with hot damn tunes and still getting almost stock mpg. Anyone know why or could help me out. I don't know if this makes any difference but the #8 injector sticks when it's cold. Any help would be great thanks
Hand calculated?



2010 CCSB FX4. Mini Maxx/Gearhead, Deletes, H11 Studs, Up-pipes, 4" DP, 5" Back, CAC, Elbow, CCV, CAI, Custom Heads, Elite Transmission


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post #3 of 43 Old 04-30-2012, 04:21 PM
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Lots of threads on here with different people saying that they are only getting a few MPG better than stock with the deletes. Don't know if you were looking for some sort of miraculous fuel economy or not but the deletes seem to be performance oriented first with fuel economy as a secondary factor/benefit.

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post #4 of 43 Old 04-30-2012, 04:45 PM Thread Starter
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It's all hand cal. Would the ret of the exhaust help or different tuning like kem?
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post #5 of 43 Old 04-30-2012, 04:47 PM
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Alot of it has to do with your driving habits and whether your driving more city than highway. Also if your using H&S try a different transmission tune, i.e. schedule 2.

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post #6 of 43 Old 04-30-2012, 04:51 PM Thread Starter
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I have the one with the converter locks up in 4 and med

2012 f250 6.7 ccsb
Spartan tuned
Egr delete
S&b intake
Delete pipe and spare rear exhaust

Old truck: 2008 job 2 f250 ccsb 6.4 4x4
S&B intake
4in exhaust
Blacked out windows
H&S KEM tuned
Firestone destinations a/t 315/75/17
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post #7 of 43 Old 04-30-2012, 05:45 PM
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I went from 10-11 to 13-15, depends how I drive, realistically that's still a HUGE change. Consider this, even if you were to "Only" gain 2mpg if you were getting 10 before is a 20% increase...... So exactly what are your numbers?

2008 (Job 1) F250 King ranch 4x4, snow plow prep package with 2.5 level. Black Maxx, B&W Diehard platinums. Dieselsite coolant and transmission filters, NCU Motorsports/amsoil oil bypass kit. Turbo blankets, 5.5 PMF traction
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post #8 of 43 Old 04-30-2012, 06:11 PM
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Ive seen 18mpg on the hwy with rpms lower than 2k, and a VERY easy foot. Almost too slow in the acceleration dept. Its all driving habits with these trucks, b/c tuned, they are just itching to dump some serious fuel and make power.



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post #9 of 43 Old 04-30-2012, 06:25 PM
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Town driving is gonna suck no matter what. I live in a small town and it's literally accelerate, brake, repeat everywhere you go. Adds up to about 9-11 mpg in town. Best thing I've found to do is watch the lie I meter and if I'm doing something that makes it go down do something else. Lol


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post #10 of 43 Old 04-30-2012, 06:47 PM
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Originally Posted by Johnsabine2003 View Post
Town driving is gonna suck no matter what. I live in a small town and it's literally accelerate, brake, repeat everywhere you go. Adds up to about 9-11 mpg in town. Best thing I've found to do is watch the lie I meter and if I'm doing something that makes it go down do something else. Lol


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Much as we all know the lie-o-meter is not accurate, it is a good tool to at least gauge the performance of your truck! I use mine to gauge how the truck is running, though there are times when ya just have to play (like blowing away a 300ZX turbo just because you can. lmao).

Been an interesting first 6 weeks with my truck, learning how to drive it without having 5mpg as my average fuel economy.

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